So what's working ?
Welcome to the forum. Although you can post in any forum, the USA forum is here in case of local regs or laws
View the thread, titled "Low Flow/Pressure" which is posted in UK Plumbers Forums on UK Plumbers Forums.
J
jase158
Working pressure on mains 1.5 bar,
working pressure on outlets, around 0.5 bar by my calculations!!
working pressure on outlets, around 0.5 bar by my calculations!!
And stop shouting !!!!!!!
Undo a tap flexi and measure it there with another outlet running
J
jase158
That's what I did, definetly taps causing issues
Last edited by a moderator:
So the tap is losing 1 bar ?
T
Toxic Ted
What have you got at the showers and bath?
Any inline strainers on the taps and showers?....you know the rubber washer type.
If the taps are restricting flow then there shouldn't be a reduction when another is opened.
Have the taps got diffusers on the outlet as this is always a crap catcher and often overlooked.
Any inline strainers on the taps and showers?....you know the rubber washer type.
If the taps are restricting flow then there shouldn't be a reduction when another is opened.
Have the taps got diffusers on the outlet as this is always a crap catcher and often overlooked.
J
jase158
6l/min at showers and baths, 0.4 working pressure
No strainers anywhere
Taps all clean, Checked all strainers, Filters etc, no dirt in pipes or taps
Same pressure on taps with filters and taps without.
J
jase158
Yeah that's what is worrying, Why is it loosing so much?
H
hshah
I think he did, but if it helps, this is the water softener:
Technical specifications | TwinTec Water Softeners
Last edited by a moderator:
J
jase158
Yes and tested before and after water softener and as said before, not loosing any pressure through water softener, hi flow kit fitted on the water softener
H
hshah
As Jase mentioned earlier, we have 18l/min just after the stopcock, after the water softener and just before the pipe connects to the taps (after ISO). The fact that the taps have a reduced flow of 8l/min and lower pressure isn't such a big issue because we wouldn't really want more from those taps. However, with 18l/min into the property we should be able to have 2-3 outlets open at the same time, but with 2 taps open the flow drops to about 4l/min out of each tap.
That is our main issue, because whilst someone is showering no one else in the house can use any taps or have the washing machine / dishwasher on.
That is our main issue, because whilst someone is showering no one else in the house can use any taps or have the washing machine / dishwasher on.
J
jase158
Hshah, where did the taps come from? Did u buy them or did the builder?
H
hshah
We bought them. The kitchen one is a Franke Kubus FilterFlow:
Franke FilterFlow Taps Kubus Hand spray SilkSteel
Trying to find the receipts for the other ones and the showers so I can tell you which ones they are. I do know they are all decent named brands.
H
hshah
These are what they are:
The only exception is the utility room tap which is a random one from Wickes.
The only exception is the utility room tap which is a random one from Wickes.
Last edited by a moderator:
J
jase158
https://www.ukbathroomstore.co.uk/phoenix-vp065-round-thermostatic-bar-valve-and-rigid-riser
En suite shower should be fine- suitable for low pressure, minimum of 0.5 bar?
En suite shower should be fine- suitable for low pressure, minimum of 0.5 bar?
J
jase158
Phoenix Square Stainless Steel Thermostatic Shower Column - SC002
This one requires 2 bar minimum pressure?
This one requires 2 bar minimum pressure?
J
jase158
The rest are all low pressure showers so should work ok?
H
hshah
The issue is with all the showers and taps... as soon as another outlet is turned on the flow drops significantly.
H
hshah
Wasn't the pressure coming up to the taps 2 bar? Obviously it will drop a little since its upstairs and would explain why that shower is weaker than the rest, but doesn't explain the flow issue we have.
H
hshah
Dynamic pressure question is for jase, but I can answer the floors one... 3 floors including ground floor (one shower on ground, two on first and one on second).
E
Ermintrude
Ok. Pipe work right sizes? Have u checked that pipe isn't inserted too far into a tee? Or cheap ISO fitted?
Had one where branch on tee obstructed 95% of main pipe.
Not piped in 10mm is it? Sounds very much like an obstruction. 25mm mdpe restricted? Pebble?
Fit a tee on mdpe. Measure flow rate and dynamic pressure.
Had one where branch on tee obstructed 95% of main pipe.
Not piped in 10mm is it? Sounds very much like an obstruction. 25mm mdpe restricted? Pebble?
Fit a tee on mdpe. Measure flow rate and dynamic pressure.
H
hshah
I will leave it to jase to answer the "technical" questions, but for my benefit, would a blockage really result in what we are experiencing? We know we are getting 18l/min after the water softener and to the taps... just went multiple taps are on the flow drops to about 4l/min.
E
Ermintrude
Yes . Very much so.
T
Toxic Ted
Sounds to me like a restriction in there somewhere. I've had foreign objects in the pipework before from a pebble to marbles (disgruntled builder), but when this is the case you normally get a spurt of decent pressure followed almost instantly by the drop.
H
hshah
I think the pressure/low is consistent when an outlet is turned on, until another one is turned on.
How would one go about confirming there is a blockage, locating it and then clearing it?
C
Ch4 plumbing
I would look back to post #26 Jase, if the water board are to be believed at the meter you have 24ltr a min and at the stop tap as the new main enters the house you have 18ltrs a min! How longs the new water main? Your losing upto 6ltrs a min just their!
H
hshah
It is about 15m of the blue pipe, which is going straight from the water meter to the stopcock.
C
Ch4 plumbing
Could even be a possible fault with the nrv in the meter.
H
hshah
The Affinity Water guy who came to check everything a while back said all that was fine. His conclusion was that our builder had kinked the pipe, but he only checked the mains, meter and the water tap in the back garden.
C
Ch4 plumbing
That's a fair assumption, the other question I'd ask is did the builder flush the main thoroughly before connecting onto the new system within the house?
Official Sponsors of Plumbers Talk
Reply to the thread, titled "Low Flow/Pressure" which is posted in UK Plumbers Forums on Plumbers Forums.
Similar plumbing topics
We recommend City Plumbing Supplies, BES, and Plumbing Superstore for all plumbing supplies.
